Please use C programming

Homework for Module 8 (Each problem requires pseudocodes on how the user defined functions works and interacts with the main functions.) 1. (This is redoing of your previous homework problems. This time do this problem by using user defined functions. Please create 3 script with 1) A User defined function that does not take any argument and does not return any value. 2) A User defined function that takes arguments but does not return any value. 3) A User defined function that takes arguments and returns a value (USE ARRAY FOR THE Vertices and Lengths!) Create a script that will take user input of 3 vertices to calculate the area of a triangle by using Heron' Formula. You will need the "pow" function in "math.h" header file math com Heron's Formula S- A+B+C 2 Area VS(S- A)(S - B) (S -C) Your output should have the format of -With the given vertices (Display Vertices) the area of the triangle is (The result.)